I was playing around in a creative world, and I used Worldedit to make a GIANT cube of TNT. I made a long redstone line leading up to it, and lit it. i didn't have repeaters, so it didn't reach the TNT at all, but my game started lagging, even on "tiny" render distance. I restarted my computer, deleted the world, and got a fresh .jar, and now texture packs don't work, even with optifine installed. And when I when i re-install all the mods i had before this, they won't load. Please help! I have no idea what to do!
Texture Packs and Mods stopped working